CAJ | 학술논문

对地震荷载作用下不同深度饱和粉土地基的液化特性进行研究，通过室内动三轴试验研究地震荷载作用下饱和粉土地基的最大可液化深度，试验中通过对给定不同应力幅值动荷载作用下饱和粉土的液化特性进行研究，得到不同地震烈度下不同深度土体的动剪应力比与破坏振次关系曲线，进而结合地基液化判别公式判断不同深度饱和粉土在不同地震烈度下是否发生液化。研究成果为高烈度地区确定抗液化措施及处理深度提供了依据。
대지진하재작용하불동심도포화분토지기적액화특성진행연구，통과실내동삼축시험연구지진하재작용하포화분토지기적최대가액화심도，시험중통과대급정불동응력폭치동하재작용하포화분토적액화특성진행연구，득도불동지진열도하불동심도토체적동전응력비여파배진차관계곡선，진이결합지기액화판별공식판단불동심도포화분토재불동지진열도하시부발생액화。연구성과위고열도지구학정항액화조시급처리심도제공료의거。
To obtain the corresponding maximum liquefaction depth of saturated silty soil ground under different seismic shock conditions,we studied the liquefaction behavior of saturated silty soil under various seismic loading conditions at different depths.We conducted a series of GDS dy-namic triaxial tests to consider different dynamic loads which were set in advance,and determined the degree of silt soil liquefaction at different depths and different seismic shock conditions.We al-so obtained the relationship between the dynamic shear stress ratio and the number of soil cycles. We established liquefaction depth according to the discriminate formula.The results can be used to predict soil liquefaction depths for high-seismic-intensity area projects.